In caz că se vede la fel de ciudat poza cum imi apare mie , x=30/8 , simplificat x=15/4
Răspuns:
Salut
5/4*[4/5(2/3x +3/2)+1]-(3/2)^2=3
5/4*(8/15x+6/5 +1)-27/8=3
5/4*(8/15x+11/5)-27/8=3
2/3x+11/4-27/8=3
2/3x-5/8=3
16x-15=72
16x=72+15
16x=87
x = 87/16.
